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Syntax 1 For all objects – PB Docs 126 – PowerBuilder Library

Syntax 1 For all objects – PB Docs 126

Syntax 1 For all objects

Description

Determines the natural logarithm of a number.

Syntax

Argument

Description

n

The number for which you want the natural
logarithm (base e). The value of n must
be greater than 0.

Return Values

Double. Returns the natural logarithm
of n. An execution error occurs if n is negative
or zero. If n is null, Log returns null.

note.png Inverse of Log

The inverse of the Log function is the Exp function.

Examples

This statement returns 2.302585092:

This statement returns –.693147. . . :

Both these statements result in an error at runtime:

After the following statements execute, the value
of a is 200:

See Also

  • Exp

  • LogTen

  • Log method for DataWindows
    in the DataWindow Reference or the online Help


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